298218979968 has 384 divisors, whose sum is σ = 1002264762240. Its totient is φ = 77865984000.

The previous prime is 298218979901. The next prime is 298218979969. The reversal of 298218979968 is 869979812892.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 298218979893 and 298218979902.

It is not an unprimeable number, because it can be changed into a prime (298218979969) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24699373 + ... + 24711443.

It is an arithmetic number, because the mean of its divisors is an integer number (2610064485).

Almost surely, 2^298218979968 is an apocalyptic number.

298218979968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298218979968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501132381120).

298218979968 is an abundant number, since it is smaller than the sum of its proper divisors (704045782272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

298218979968 is a wasteful number, since it uses less digits than its factorization.

298218979968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216 (or 12197 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 78.

The spelling of 298218979968 in words is "two hundred ninety-eight billion, two hundred eighteen million, nine hundred seventy-nine thousand, nine hundred sixty-eight".